"And it is foolish to buy expensive components from China where manufacturing quality control is so poor."I think it depends. More expensive items may have better quality control. No way for me to prove it here, of course, but manufacturers in China are aware of quality concerns, too.
For whatever reason, I still have one Made in China NAD amplifier about twenty years old now. If everything would be that reliable. It worked virtually 16/7 for 15 years. It still works, just not that much.